AOC 177S Manuel utilisateur
17" LCD Color Monitor AOC 177S
1
Service
Service
Service
Horizontal Frequency
30-80 kHz
TABLEOFCONTENTS
Description Page Description Page
SAFETY NOTICE
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE
CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
Table Of Contents.......…….................……...........…........1
Revision List.…........................………................……......2
Important Safety Notice.………….…..................……......3
1.Monitor Specification..............................………........4
2.LCD Monitor Description…………………………….......5
3.Operation Instruction…………...............……...........6
3.1.General Instructions...........................…...........6
3.2.Control Button…………….…..............……...............6
3.3 Adjusting the Picture...........................…............7
4.Input/Output Specification............……………............9
4.1.Input Signal Connector............…………….................9
4.2.Factory Preset Display Modes.........................9
4.3.Panel Specification.....…………...………..................10
5.Block Diagram…….…...................…………................12
5.1.Software Flow Chart…………………....….......12
5.2.Electrical Block Diagram…………..…..….......14
6.Schematic……………...............................….....16
6.1 Main Board……………..........................................16
6.2 Power Board....……..............................................21
7.PCB Layout..………….......................................23
7.1.Main Board………........................................23
7.2.Power Board….......................................26
7.3.Key Board…………………....................................28
8.Maintainability……….......................................29
8.1.Equipments and Tools Requirement......................29
8.2.Trouble Shooting…………..............................30
9.White-Balance, Luminance adjustment.................36
10.Monitor Exploded View……………………............37
11.BOM List….....................................................38
12.Different Parts List……………………………………50
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
17" LCD Color Monitor AOC 177S
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Revision List
Revision Date Revision History TPV Model
A00 April-19-2007 First Version Release T76CM5NQF1ACF
A01 May-18-2007 Add the audio function T76CM5DCF1A2A
17" LCD Color Monitor AOC 177S
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Important Safety Notice
Proper service and repair is important to the safe, reliable operation of all AOC Company Equipment. The service
procedures recommended by AOC and described in this service manual are effective methods of performing service
operations. Some of these service operations require the use of tools specially designed for the purpose. The
special tools should be used when and as recommended.
It is important to note that this manual contains various CAUTIONS and NOTICES which should be carefully read in
order to minimize the risk of personal injury to service personnel. The possibility exists that improper service
methods may damage the equipment. It is also important to understand that these CAUTIONS and NOTICES ARE
NOT EXHAUSTIVE. AOC could not possibly know, evaluate and advise the service trade of all conceivable ways in
which service might be done or of the possible hazardous consequences of each way. Consequently, AOC has not
undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not
recommended by AOC must first satisfy himself thoroughly that neither his safety nor the safe operation of the
equipment will be jeopardized by the service method selected.
Hereafter throughout this manual, AOC Company will be referred to as AOC.
WARNING
Use of substitute replacement parts, which do not have the same, specified safety characteristics, may create shock,
fire, or other hazards.
Under no circumstances should the original design be modified or altered without written permission from AOC.
AOC assumes no liability, express or implied, arising out of any unauthorized modification of design.
Servicer assumes all liability.
FOR PRODUCTS CONTAINING LASER:
DANGER-Invisible laser radiation when open AVOID DIRECT EXPOSURE TO BEAM.
CAUTION-Use of controls or adjustments or performance of procedures other than those specified herein may
result in hazardous radiation exposure.
CAUTION -The use of optical instruments with this product will increase eye hazard.
TO ENSURE THE CONTINUED RELIABILITY OF THIS PRODUCT, USE ONLY ORIGINAL MANUFACTURER'S
REPLACEMENT PARTS, WHICH ARE LISTED WITH THEIR PART NUMBERS IN THE PARTS LIST SECTION OF
THIS SERVICE MANUAL.
Take care during handling the LCD module with backlight unit
-Must mount the module using mounting holes arranged in four corners.
-Do not press on the panel, edge of the frame strongly or electric shock as this will result in damage to the screen.
-Do not scratch or press on the panel with any sharp objects, such as pencil or pen as this may result in damage to
the panel.
-Protect the module from the ESD as it may damage the electronic circuit (C-MOS).
-Make certain that treatment person’s body is grounded through wristband.
-Do not leave the module in high temperature and in areas of high humidity for a long time.
-Avoid contact with water as it may a short circuit within the module.
-If the surface of panel becomes dirty, please wipe it off with a soft material. (Cleaning with a dirty or rough cloth may
damage the panel.)
17" LCD Color Monitor AOC 177S
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1. Monitor Specifications
Items Description
Driving system TFT Color LCD
Type CLAA170EA07P
Size 43.2cm (17.0")
Pixel pitch 0.264mm (H) x 0.264mm (V)
Viewable angle(CR≥10) 160°(H) 160°(V)
Response time (type) 5 ms
Display Color 16.2M
Contrast Ratio 700:1
LCD Panel
White Luminance 300cd/m2
Sync. Type H/V TTL
Input Connector D-Sub 15pin
Input Video Signal Analog:0.7Vp-p(standard),75 OHM, Positive
H-Frequency 30kHz – 80kHz
Input
V-Frequency 55-75Hz
ON Mode ≤37W
Power Consumption
OFF Mode ≤1W
Dot Clock 135MHz
Max. Resolution 1280 x 1024
Plug & Play VESA DDC2BTM
Power Source 100~240VAC,47~63Hz
Maximum Screen Size Horizontal : 338mm
Vertical: 270mm
Dimensions 384 mm (H) x375.5 mm (W) x209.6 mm (D)
Weight Monitor only: 3.7 kg
Environmental
Considerations
Operating Temp: 5°C to 35°C
Storage Temp: -20°C to 60°C
Operating Humidity: 10% to 85%
17" LCD Color Monitor AOC 177S
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2. LCD Monitor Description
The LCD monitor will contain a main board, power board and a key board which house the flat panel control logic,
brightness control logic and DDC.
The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips
each voltage.
AC-IN
100V-240V
Power board
(
Include: ada
p
ter, inverter
)
Flat Panel and
CCFL backlight
Main Board RS232 Connector
For white balance
adjustment in factory
mode
HOST Computer
CCFL Drive.
Video signal, DDC
Monitor Block Diagram
Key board
17" LCD Color Monitor AOC 177S
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3. Operating Instructions
3.1 General Instructions
Press the power button to turn the monitor on or off. The control buttons are located in the front of the monitor.
By changing these settings, the picture can be adjusted to your personal preferences.
-The power cord should be connected.
-Connect the video cable from the monitor to the video card.
-Press the power button to turn on the monitor, the power indicator will light up.
3.2 Control Button
External Controls
1. Contrast 2. Brightness
3. Power Button/ LED 4. MENU / ENTER
5. Auto Adjust button / Exit
•Power Button:
Press this button to turn the monitor ON or OFF.
•Power Indicator:
Green — Power On mode.
Orange — off mode.
•MENU / ENTER:
Activate OSD menu when OSD is OFF or activate/de-activate adjustment function when OSD is ON or Exit OSD
menu when in Brightness /Contrast Adjust OSD status.
•Brightness:
Adjust brightness or functions adjust.
•Contrast:
Adjust contrast or functions adjust.
•Auto Adjust button / Exit:
1. When OSD menu is in active status, this button will act as EXIT-KEY (EXIT OSD menu).
2. When OSD menu is in off status, press this button for 2 seconds to activate the Auto Adjustment function.
The Auto Adjustment function is used to set the HPos, VPos, Clock and Focus.
17" LCD Color Monitor AOC 177S
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3.3 Adjusting the Picture
Adjustment steps:
1. Press the MENU-button to activate the OSD window.
2. Press < or > to select the desired function.
3. Press the MENU-button to select the function that you want to adjust.
4. Press < or > to change the settings of the current function.
5. To exit and save, select the exit function, or leave the monitor alone for 10 seconds. If you want to adjust any
other function, repeat steps 2-4.
OSD TABLE:
Main Menu Item Main Menu
Icon Sub Menu Item
Sub Menu
Icon Description
Contrast
Contrast from Digital-register.
Luminance
Brightness
Backlight Adjustment
Focus
Adjust Picture Phase to reduce Horizontal-Line
noise
Image Setup
Clock
Adjust picture Clock to reduce Vertical-Line
noise.
H. Position
Adjust the horizontal position of the picture.
Image Position
V. Position
Adjust the vertical position of the picture.
Warm N/A Recall Warm Color Temperature from
EEPROM.
Cool N/A Recall Cool Color Temperature from EEPROM.
Color Temp.
sRGB N/A Recall sRGB Color Temperature from
EEPROM.
17" LCD Color Monitor AOC 177S
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User / Red
Red Gain from Digital-register.
User / Green
Green Gain Digital-register.
User / Blue
Blue Gain from Digital-register.
Yes
N/A Auto Adjust the H/V Position, Focus and Clock
of picture.
Input Select
No N/A
Do not execute Auto Config, return to main
menu.
H. Position
Adjust the horizontal position of the OSD.
V. Position
Adjust the vertical position of the OSD.
OSD Setup
OSD Timeout
Adjust the OSD timeout.
Language
Language N/A Set OSD display language that you like..
Information
Information N/A
Show the resolution, H/V frequency and input
port of current input timing.
Yes N/A
Clear each old status of Auto-configuration and
set the color temperature to Cool.
Reset
No N/A Do not execute reset, return to main menu.
Exit
N/A N/A Exit OSD
17" LCD Color Monitor AOC 177S
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4. Input/Output Specification
4.1 Input Signal Connector
Pin No. Description Pin No. Description
1. Red Video 9. +5V
2. Green Video 10. Detect Cable
3. Blue Video 11. TXD
4. RXD 12. DDC-Serial Data
5. Ground 13. H-Sync
6. Red Ground 14. V-Sync
7. Green Ground 15. DDC-Serial Clock
8. Blue Ground
VGA connector layout
15
610
11 15
4.2 Factory Preset Display Modes
Standard Resolution Horizontal
Frequency
Vertical
Frequency
Dos-mode 720 x 400 31.47kHz 70.0Hz
640 × 480 31.47kHz 60.0Hz
VGA
640 × 480 37.50kHz 75.0Hz
800 × 600 37.879kHz 60.0Hz
SVGA
800 × 600 46.875kHz 75.0Hz
1024 × 768 48.363kHz 60.0Hz
1024 × 768 56.476kHz 70.0Hz
XGA
1024 × 768 60.021kHz 75.0Hz
1280 × 1024 64.000kHz 60.0Hz
SXGA
1280 × 1024 80.000kHz 75.0Hz
17" LCD Color Monitor AOC 177S
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4.3 Panel Specification
4.3.1 Display Characteristics
4.3.2 Optical Characteristics
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